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What to pay attention to when installing the sand making machine motor

Time: 2020-10-21 10:21:25 Share To
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 Many consumers have encountered motor installation problems in the process of purchasing sand making machines. Jiaozuo Zhongxin Heavy Industry introduced the installation steps of sand making machine motors and maintenance precautions as follows: It should be carried out after the installed drive shaft and gearbox. The misalignment between the center line of the gearbox high-speed shaft and the motor shaft shall not be er than 0.15 mm, and the belt coupling shall not be er than 0.3 mm.

sand making machine

 
The sand making machine often affects production due to motor failures during use. The main failure phenomena include: stator and rotor core failure inspection and repair, and the rotor is composed of mutually insulated silicon steel sheets, which are the magnetic circuit part of the motor. The damage and deformation of stator and rotor cores are mainly caused by the following reasons:
 
(1) Excessive wear of the bearing or poor assembly will cause the stator and rotor to rub together, damage the surface of the iron core, and cause a short circuit between the silicon steel sheets, increase the iron loss of the motor, and cause the motor temperature to rise too high. At this time, use fine files and other tools to remove the burrs, eliminate the short circuit of the silicon steel sheet, clean it up, apply insulating paint, and heat and dry it.
 
(2) Excessive force was used when removing the old winding, which caused the stolen slot to skew and open outward. At this time, use needle-nose pliers, wooden hammers and other tools to trim, reset the tooth slot, and add hard insulating materials such as blue shell paper and bakelite between the silicon steel sheets with gaps that are not easy to reset.
 
(3) The surface of the iron core is corroded due to moisture and other reasons. At this time, it needs to be polished with sandpaper, and then coated with insulating paint.
 
(4) The combination between the iron core and the base is loose, and the original positioning screws can be tightened. If the positioning screw fails, re-drill and tap the positioning hole on the base, and tighten the positioning screw.

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